CN111101572A

CN111101572A - Method for slowly releasing toilet cleaning product

Info

Publication number: CN111101572A
Application number: CN201911229742.0A
Authority: CN
Inventors: 胡利利
Original assignee: Guangzhou Blue Moon Industrial Co ltd
Current assignee: Guangzhou Blue Moon Industrial Co ltd
Priority date: 2019-04-25
Filing date: 2019-12-04
Publication date: 2020-05-05
Anticipated expiration: 2039-12-04
Also published as: CN211646618U; CN110820881B; CN110820881A; CN110886362A; CN111101572B; CN110886361B; CN110886361A; CN211646617U

Abstract

A method for releasing a toilet cleaning product in a slow time relates to the field of putting in a cleaning agent of a flush toilet, and is used for acting in a toilet basin of the toilet, wherein the toilet cleaning product is arranged in a cavity, and the method comprises the following steps: before having water to get into once more in the cavity, the toilet cleaning articles for use form initial solution in the cavity, when having water to get into once more in the cavity, water dilutes initial solution, and solution during the dilution becomes replacement solution to slowly flow out the opening from the cavity and get into in the lavatory basin, resume the height of open-ended to the water level in the cavity. The invention can prevent the effective components in the toilet cleaning articles from being quickly washed away by water flow, thereby ensuring the content of effective substances in the toilet cleaning articles in the toilet basin, enabling most of the solution to stay in the toilet, reducing waste and improving practical effect.

Description

Method for slowly releasing toilet cleaning product

Technical Field

The invention relates to the field of putting in of a toilet bowl cleaning agent, in particular to a method for releasing a toilet cleaning product slowly.

Background

In both domestic and public health areas, the toilet bowl needs to be cleaned, deodorized, etc., so as to ensure the sanitation of the toilet bowl and the environmental sanitation. The common treatment methods can be divided into two types: firstly, effective substances with cleaning or fragrance and the like are placed in a water tank of a flush toilet and are gradually dissolved in the water tank, when the toilet is flushed, water with the effective substances enters the toilet from the water tank to flush the inner wall of the toilet, so that cleaning is realized, and part of the effective substances remained in the water in the toilet emit fragrance, so that the environment is improved; secondly, effective substances, such as solid block or gelatinous paste, are directly pasted inside the closestool, and after water in the water tank enters the closestool, the solid block or gelatinous substance is washed while the inner wall of the closestool is washed, so that the aim of cleaning or removing peculiar smell is fulfilled. The two modes need manual operation for placing or change new effective substances in a short period so as to realize the purpose of continuously treating the flush toilet, and when the two modes are operated by hands, some corrosive or easily dyed substances can be stained on the hands, so that inconvenience and even injury are brought to users.

For the first common treatment method, the effective substance is soaked in the water tank for a long time, and is in a continuous dissolving state no matter whether the toilet is used or not, so that the dissolution of the effective substance is accelerated, and when the dissolved water in the water tank is used for flushing the inner wall of the toilet, a large amount of the dissolved water flows away from a sewer, and only a small part of the dissolved water is remained in the toilet. In summary, the active substance has a short life and is not related to the number of uses of the toilet bowl, and the active substance is mostly wasted.

For the second common treatment mode, in order to avoid the large block of effective substances from being washed away and lost, the solvent speed of the solid substances is slow, when water in the water tank flows through the effective substances adhered to the inner wall of the closestool, the obtained effective components in the dissolved water are insufficient, most of the dissolved water can enter a sewer, the amount of the dissolved water remained in the closestool is small, waste is caused, and on the other hand, the concentration of the effective substances in the dissolved water is extremely low, so that the expected effects of cleaning, peculiar smell removal treatment and the like cannot be achieved.

Therefore, the existing means for cleaning and deodorizing the toilet bowl have the defects of excessive or insufficient or uneven release of effective substances or large loss of the effective substances, and waste is caused and the ideal effect is far from achieved.

Disclosure of Invention

The invention aims to overcome at least one defect of the prior art and provides a method for slowly releasing a toilet cleaning product, which can prevent active ingredients in the toilet cleaning product from being quickly washed away by water flow, thereby ensuring the content of active substances of the toilet cleaning product in a toilet basin, enabling most of solution to stay in a toilet, reducing waste and improving practical effect.

The invention adopts the technical scheme that a method for slowly releasing a toilet cleaning article acts in a toilet basin of a flush toilet, the toilet cleaning article is arranged in a shell, and the method comprises the following steps: before water enters the shell, the toilet cleaning article forms initial solution with the density rho 1 in the shell, when water enters the shell again, the initial solution is diluted by the water to form replacement solution with the density rho 2, and the replacement solution slowly flows out of the shell opening and enters a toilet bowl; when the water level in the toilet bowl returns to the normal state, the replacement solution is continuously released after the water level in the toilet bowl returns to the normal state until the release is finished, and the mixed liquid of the replacement solution and the water existing in the toilet bowl is called primary solution; in the above method, the chamber is used to contain the initial solution in a volume of not less than 10 ml; and the content of the effective components of the toilet cleaning product in the primary solution is not less than 2 ppm.

The main principle of the method is that the replacement mode is adopted, firstly, the toilet cleaning article is placed in the shell, and the shell is placed at the proper position of the toilet or the toilet basin, so that the water in the water tank of the flush toilet can smoothly enter the shell to be mixed with the toilet cleaning article, and then the water flows out from the opening of the shell. Because the opening of the shell has a certain height, after a user flushes water for the first time, water entering the shell cannot flow out completely, and part of the water remains in the shell, so that the part or the whole of the toilet cleaning article is soaked by the part of the water, the toilet cleaning article forms initial solution in the shell, and the water level of the initial solution does not exceed the opening height of the shell. When a user flushes water for the next time, water in the water tank of the toilet bowl enters the shell again, the water level begins to exceed the height of the opening of the shell while the water of the part of the water is mixed with the initial solution, namely, at the moment, the replacement solution begins to flow out of the opening of the shell and enters the toilet bowl, and along with the continuous injection of the water in the water tank of the toilet bowl, the concentration of the replacement solution is gradually reduced, but the effective substances of the toilet cleaning articles in the replacement solution are continuously released, slowly, along with the continuous dissolution of the toilet cleaning articles in the replacement solution, the effective substances of the toilet cleaning articles in the replacement solution can reach dynamic balance, namely, the content of the effective substances of the toilet cleaning articles in the replacement solution flowing out of the shell is equal to the content of the effective substances of the toilet cleaning articles dissolved again in the replacement solution of the toilet articles in the shell in the same time period, at the moment, the content of the effective substances of, prevent that the active ingredient among the toilet cleaning articles for use from being washed away fast by rivers to guarantee the active material content of the toilet cleaning articles for use in the lavatory basin, make most of solution stop in the closestool, reduced the waste, promoted practical function.

Secondly, the toilet cleaning article is wholly soaked in the water in the shell, the toilet cleaning article can be sealed under the water level, volatilization of volatile components in the toilet cleaning article is avoided, and peculiar smell can be prevented from dissipating.

Further, the solubility of the toilet articles in the initial solution in water at 25 ℃ is not more than 10 g/L; or the solubility of the toilet article in the initial solution in water at 20 ℃ is not more than 5 g/L.

Further, the content of the solute of the toilet cleaning product contained in the initial solution in the shell is defined as m0, and the content of the solute of the toilet cleaning product contained in the primary solution in the toilet bowl is defined as m1, so that m1/m0 is 0.5-1.

The water storage volumes of the toilet bowls of different sizes are different, but the initial solution solute content m0 formed by the toilet cleaning articles of the same type is certain, the initial solution solute content m0 is acted in the toilet bowl and is substantially the solute in the replacement solution, and in order to ensure the action effect of replacing the solution in the toilet bowl, the solute content ratio is adopted for measurement, namely m1/m0 is 0.5-1; preferably, m1/m0 is 0.5 or 0.6 or 0.7 or 0.8 or 0.9 or 1. As the toilet bowl is communicated with the U-shaped pipe, a small amount of solute inevitably enters the U-shaped pipe, and therefore, the ratio of m1/m0 is required to be more than 0.5. The steps in actual detection are as follows: selecting two identical toilets (a toilet A and a toilet B), cleaning a toilet water tank and a toilet bowl, filling the toilet water tank with water, and recovering the water level in the toilet bowl to a normal state; two identical shells (a and b) are respectively mounted at the same positions of two toilets, and the shell at the position can receive water flowing into a toilet bowl from a toilet water tank; respectively putting the same solid toilet cleaning articles with the same mass and containing the cleaning component M into the shells a and b, adding water into the shells a and b, and standing for a period of time to form initial solutions; the initial solution in the housing a was completely received by the container, and the mass of M in the initial solution received by the container was measured and recorded as M0. When the shell B mounted on the closestool B finishes releasing the replacement solution by pressing a flushing button of the closestool B, measuring the mass of M in the primary solution in the toilet bowl, and recording the mass as M1, thereby obtaining the ratio of M1/M0. The solute content in the initial solution and the primary solution with corresponding volumes can be obtained by obtaining the initial solution and the primary solution with certain volumes and adopting physical and chemical methods such as drying and the like, and the actual ratio of m1 to m0 can be obtained by calculating the solute content of the initial solution and the primary solution with the whole volumes, so that the mixing ratio of the toilet cleaning product and the water and the release amount of the initial solution can be adjusted.

Further, defining the time t1 for flushing the toilet bowl from the beginning of replacement solution entering the toilet bowl to the water level in the toilet bowl to recover the normal state; defining the time from the beginning to the end of the release of the replacement solution in the shell as the outflow time t3 of the replacement solution; defining a release time t4 from the water level in the toilet bowl returning to the normal state to the displacement solution release end in the shell as the partial delay of the displacement solution; then: t 4-t 3-t1, and/or t4 is not less than 3 minutes, and/or t4 is not less than t 1; t3 is less than or equal to 40 minutes, and/or t3 is more than or equal to 2t 1.

After the existing closestool in the market is flushed and pressed once, the time t1 that water in a water tank tends to calm from flowing out to the inner water surface of a closestool basin is 5-120 seconds, so that the content of a replacement solution in the closestool basin is increased, and the replacement solution is released after the inner water surface of the closestool basin tends to calm as much as possible; secondly, along with the increase of the service life of the flush toilet, the water outlet valve in the water tank is loosened and aged, after the flush toilet is pressed once, the time for water flow to flow into the toilet bowl from the water tank is obviously prolonged, namely the time required by the water level in the toilet bowl tends to be calm is increased, and therefore, the replacement solution is set for at least 3 minutes after the flush toilet is finished. Secondly, when the toilet bowl begins to feed water, water is mixed with the initial solution at the same time to form a replacement solution and begins to release, therefore, the time period from the time when the replacement solution begins to release to the initial time when the delayed release time t4 is basically as long as the flushing time t1 of the toilet bowl, in order to ensure that the content of effective components in the replacement solution existing in the toilet bowl is as much as possible after the release of the replacement solution, t4 is set to be more than or equal to t1, namely the time when the replacement solution is slowly released is not less than the flushing time t1 of the toilet bowl, and the concentration of the replacement solution is higher and higher along with the longer and longer time when the toilet cleaning articles are dissolved, so that at least 50% of the replacement solution can stay in the toilet bowl, namely at least 50% of the content of the effective substances of the replacement solution in the toilet bowl can stay in the toilet bowl without being washed away, and the solute of the toilet articles.

Further, t4 is t3 to t1, t1 is 5 to 120 seconds, and t4 is not less than 3 minutes, and therefore, t3 is preferably 4 to 25 minutes. The time for completely releasing the replacement solution is adjusted by controlling the release speed of the replacement solution according to the volume of the replacement solution, and the time from the beginning to the end of the release of the replacement solution is set to be 4-25 minutes in consideration of the use frequency of the toilet bowl on different occasions, so that the solute contained in the replacement solution entering the toilet bowl every time is sufficient during the continuous two-time use of the toilet bowl, and the use effect of the toilet cleaning article is improved. Secondly, t4 is t3-t1, t4 is more than or equal to t1, t3 is more than or equal to 2t1, the time t4 that the replacement solution is released slowly and slowly is not less than the flushing time t1 of the toilet, and the concentration of the replacement solution is higher and higher along with the longer time for dissolving the toilet cleaning product, so that at least 50% of the initial solution stays in the toilet bowl, namely at least 50% of the effective substance content of the replacement solution in the toilet bowl exists in the toilet bowl, and the aim of keeping the solute of the toilet cleaning product in the toilet bowl as much as possible is fulfilled.

Further, the time for mixing water with the initial solution to form the substitution solution is defined as t 2. In the actual use process, the toilet cleaning article is loaded in a container with a fixed volume, when water enters the container shell again, the toilet cleaning article and the water which is stored in the shell and dissolves the toilet cleaning article are mixed to form a replacement solution, the replacement solution starts to be released from the shell into the toilet bowl in a short time, and the replacement solution stops being released into the toilet bowl at almost the same time along with the stop of the water entering the container shell, namely, when the water and the initial solution form the replacement solution and are released immediately, t2 is t 3.

Further, in the method, the housing is provided with an opening, and the opening has a height, and when the level of the replacement solution exceeds the height of the opening, the replacement solution flows out of the opening into the toilet bowl until the level of the water returns to the height of the opening.

Further, for avoiding the surplus residual water volume in the casing to lead to the toilet articles for use to dissolve the transition and cause the waste, also avoid the surplus residual water volume in the casing too little follow-up replacement solution of being not convenient for to reach dynamic balance, set up the casing opening is located 1/3 ~ 1/2 department of casing direction of height, and each 1/6 department about the casing height intermediate position is in the casing water level promptly, or guarantees that the volume of residual water volume in the casing is 1/3 ~ 1/2 of casing gross capacity.

Further, the toilet cleaning article is placed in the shell, and water is introduced into the shell according to the structural characteristics of the toilet bowl to dilute the initial solution.

In this technical scheme, place the toilet articles for use in the box body of taking the casing, fix the box body at closestool lavatory basin border again, for avoiding the box body to influence the user and use the closestool, box body structure size is less, and at this moment, the water after the bath can not flow into the casing smoothly, consequently, need with water leading-in casing in, make its and toilet articles for use smooth mixture form initial solution.

Further, when the toilet bowl water outlet is vertical water outlet, the water is guided to move downwards in an inclined mode, the water is guided into the shell from the upper portion of the shell, the initial solution is diluted, and the formed replacement solution flows out of the shell.

When the lavatory basin goes out water for vertical play, the water that gets into the lavatory basin from the toilet bowl water tank promptly flows in along the lavatory basin inner wall downwards, because the rivers flow downwards along the inner wall, therefore, set up the water inlet of casing on upper portion, and towards the lavatory basin inner wall, get into to lean on in the inner wall upper shell from inner wall drainage downwards, mix with the toilet cleaning supplies of bottom in the casing, dissolve or dilute toilet cleaning supplies, increase along with the volume that water got into the casing, the filling of casing internal water, toilet cleaning supplies or suspension are in the casing, or continue to be located the casing bottom, final initial solution that forms, after the user next time presses the bath, water gets into in the casing once more, form replacement solution after diluting initial solution, and replacement solution's water level is higher than the casing opening, at this moment, replacement solution flows from the casing opening. In the process, the long and thin drainage tube is arranged at the bottom of the shell or the long and thin water outlet channel is arranged at the bottom of the shell, so that the slow release effect is realized under the action of liquid tension.

Further, when the water discharged from the toilet bowl is transversely discharged, the water is guided to move upwards in an inclined mode, the water is guided into the shell from the upper portion of the shell, the initial solution is diluted, and the formed replacement solution flows out of the shell.

When the water outlet of the toilet bowl is horizontal water outlet, namely the water of the water tank of the flush toilet enters the toilet bowl from 1 to 2 water outlets horizontally arranged at the edge of the toilet bowl, the water can be transversely flushed out when flushing, and a vortex is formed along the wall of the toilet bowl under the action of gravity, so that the flushing force of the water flow on the wall of the toilet bowl is increased. Therefore, adopt ascending drainage mode of slant, the rivers that transversely wash out are in the situation gets into the casing, and along with the volume increase that water gets into the casing, the abundant of casing internal water, toilet articles for use or suspension are in the casing, or continue to be located the casing bottom, finally form initial solution, press down the bath back next time when the user in, water gets into the casing again, forms replacement solution behind the dilution initial solution in the casing, and the water level of replacement solution is higher than the casing opening, and at this moment, replacement solution flows from the casing opening. In the process, the long and thin drainage tube is arranged at the bottom of the shell or the long and thin water outlet channel is arranged at the bottom of the shell, so that the slow release effect is realized under the action of liquid tension.

Further, the liquid concentration or solute content within the housing is first reduced and then increased.

Before water enters the shell again, a certain amount of liquid exists in the shell, the interval between two times of flushing is lengthened, the concentration of the initial solution is at the highest value of the next flushing stage, after water enters the shell again, the initial solution is diluted, the liquid density is changed from rho 1 to rho 2, in the stage, along with the entering of a large amount of flushing water into the shell, the concentration of the liquid can be firstly reduced, along with the continuous discharging of the replacement solution and the stopping of the entering amount, the concentration of the liquid in the shell begins to be gradually increased, slowly, along with the continuous dissolution of the toilet cleaning product in the replacement solution, the effective substances of the toilet cleaning product in the replacement solution can reach dynamic balance.

Further, the toilet cleaning product itself or an effective bleaching component released by the toilet cleaning product after dissolution in water comprises a chemical having the structural formula (1):

wherein: r1 and R2 are independently selected from any one of C1-C6 alkyl substituents and hydrogen, and at least one of R1 and R2 is C1-C6 alkyl; x and Y are independently selected from any one of bromine, chlorine and hydrogen, and at least one of X and Y is a halogen element.

Further, the chemical substances of the toilet cleaning product or the effective bleaching components released by the toilet cleaning product after dissolving in water are selected from the following: any one of 1, 3-dichloro-5, 5-dimethylhydantoin, 1, 3-dibromo-5, 5-dimethylhydantoin, 1-bromo-3-chloro-5, 5-dimethylhydantoin, 1-chloro-3-bromo-5, 5-dimethylhydantoin, 1, 3-dichloro-5-methyl-5-ethylhydantoin, 1, 3-dibromo-5-methyl-5-ethylhydantoin, 1-bromo-3-chloro-5-methyl-5-ethylhydantoin, 1-chloro-3-bromo-5-methyl-5-ethylhydantoin, 1, 3-dibromo-5-methyl-5-isobutylhydantoin, 1, 3-dibromo-5-methyl-5-propylhydantoin, or a mixture of two or more thereof.

Further, the toilet cleaning product itself or an effective bleaching component released by the toilet cleaning product after dissolution in water comprises a chemical having the structural formula (2):

wherein: r1 and R2 are independently selected from C1-C2 alkyl substituents, X and Y are independently selected from any one of bromine, chlorine and hydrogen, and at least one of X and Y is halogen element.

Further, the chemical substances of the toilet cleaning product or the effective bleaching components released by the toilet cleaning product after dissolving in water are selected from the following: any one or two or a mixture of more than two of 1, 3-dichloro-5, 5-dimethylhydantoin, 1, 3-dibromo-5, 5-dimethylhydantoin, 1-bromo-3-bromo-5, 5-dimethylhydantoin, 1, 3-dichloro-5-methyl-5-ethylhydantoin, 1, 3-dibromo-5-methyl-5-ethylhydantoin, 1-bromo-3-chloro-5-methyl-5-ethylhydantoin, 1-chloro-3-bromo-5-methyl-5-ethylhydantoin.

Compared with the prior art, the invention forms the replacement solution by replacing the initial solution formed by the toilet cleaning article and water, and then controls the release speed of the replacement solution to ensure that the replacement solution reaches dynamic balance, thereby avoiding the solution from being taken away by water flow in the flushing process, ensuring the effective substance content of the toilet cleaning article in the toilet basin, ensuring that a large amount of the solution stays in the toilet, improving the effectiveness of the toilet cleaning article, prolonging the service life of the toilet cleaning article with the same weight and reducing waste.

Drawings

Fig. 1 is a schematic view of a use state of the container provided by the invention.

Fig. 2 is a side view of the container of the present invention when snapped on.

Fig. 3 is a view showing the construction of the container of the present invention when it is opened.

Fig. 4 is a top view of the container of the present invention when open.

FIG. 5 shows the result of testing the available chlorine content in the water body of the toilet bowl after the toilet cleaning product containing different available chlorine components is selected.

Fig. 6 shows the solubility of the toilet cleaning product used in the present embodiment.

Fig. 7 is a schematic view of water flow when water outflow of the toilet bowl is vertical water outflow.

Fig. 8 is a schematic view of water flow when water outflow of the toilet bowl is transverse water outflow.

Fig. 9 is a graph of the change in initial solution concentration within the housing.

Detailed Description

The drawings are only for purposes of illustration and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in FIG. 1, the toilet cleaning article of the present invention is placed in a casing 100, is adapted to be used in a toilet bowl 500, and is suspended on an upper rim 510 of the toilet bowl by a hook 200, the upper part of the casing 100 is provided with a water inlet 130, and the lower part of the casing 100 is provided with a gap for water outlet; in use, the water inlet 130 of the casing 100 is attached to the inner wall of the toilet bowl 500, so that water can enter the casing 100 from the water inlet 130.

As shown in fig. 2, the casing 100 comprises a left casing 110 and a right casing 120, the left casing 110 and the right casing 120 are fastened to form a casing for placing toilet cleaning articles, a water inlet 130 is arranged at the upper part of the casing, and since the flushing time of the toilet is generally 5-120 seconds, in order to ensure that sufficient water enters into the casing 100, the water inlet 130 is preferably arranged in a large opening structure; and a gap for water outlet is reserved after the left shell 110 and the right shell 120 are buckled. In order to avoid the floating force generated by the toilet cleaning articles along with the water entering the shell, the toilet cleaning articles float, a limiting part 140 is arranged in the shell and used for fixing the toilet cleaning articles in the shell below the limiting part 140. The limiting part 140 is provided with at least 1 group, and the cross section of the limiting part 140 is rectangular or circular or cross-shaped.

The limiting portion 140 is composed of a left limiting rod 141 and a right limiting rod 142, one end of the left limiting rod 141 is fixed in the left casing 110, and one end of the right limiting rod 142 is fixed in the right casing 120. Preferably, the left side limiting rod 141 and the right side limiting rod 142 can be in butt joint arrangement or staggered arrangement. The left side gag lever post 141 and the right side gag lever post 142 length equals, and when the two butt joint set up, the clearance is not more than the path of toilet articles for use or the width that is used for splendid attire toilet articles for use wrapping bag, and its length does not hinder left side casing 110 and right side casing 120's lock.

As shown in fig. 3, the top of the left casing 110 is provided with a left opening 131, the top of the right casing 120 is provided with a right opening 132, and the left opening 131 and the right opening 132 together form the water inlet 130. The left opening 131 and the left casing 110 share a left opening connecting part 112; the right opening 132 and the right housing 120 share a right opening connecting portion 122. The left opening 131 may be a U-shaped opening in the left-right direction, or may be a U-shaped hole, where the left casing 110 is not completely separated, and a left opening connection portion 112 is left; similarly, the right opening 132 may be a U-shaped opening in the left-right direction, or may be a U-shaped hole, where the right casing 120 is not completely separated and the right opening connecting portion 122 is left. After the left shell 110 and the right shell 120 are buckled, the two U-shaped openings or the U-shaped dug holes form a large opening structure similar to an ellipse together, and sufficient water can enter the shells in a short time; the left side opening connection portion 112 and the right side opening connection portion 122 make the joint surface of the left side casing 110 and the right side casing 120 form a closed ring after being fastened, so that the controllability of the fit clearance can be ensured, which is indispensable.

As shown in fig. 1, 2 and 4, and enlarged views of the upper left and upper right of fig. 2, the outer edge of the left housing 110 is a convex ring, the outer edge of the right housing 120 is a concave ring, and the convex ring and the concave ring are mutually embedded; the outer side or the end face of the convex ring is provided with a plurality of convex blocks 181 or convex points, or the inner side or the end face of the concave ring is provided with a plurality of convex strips 182 or convex points, and the convex ring and the concave ring are in a tightly matched structure, so that the convex blocks 181 and/or the convex strips 182 and/or the convex points can be used for ensuring that a stable gap is reserved between the left shell 110 and the right shell 120 in the radial direction and the axial direction.

The bottom of the shell 100 is provided with a connecting sheet 170 for connecting the left shell 110 and the right shell 120, and the upper part of the shell close to the water inlet 130 is provided with a connecting structure 160 for buckling; the connecting piece is arranged to be beneficial to buckling of the left side shell and the right side shell in a one-to-one correspondence mode, and the situation that multi-cavity products are matched with each other is avoided, so that the matching clearance is more stable, and the difficulty of production control is reduced. The left casing 110 and the right casing 120 are connected and attached by a folded back connecting piece 170, and then fastened by a connecting structure 160 to form the casing 100.

Further, in the present embodiment, the left casing 110 and the right casing 120 are processed into a closed ring shape at the sealing surface, so that the fit clearance is more stable.

As can be seen from the enlarged view of fig. 2, the connecting structure 160 is disposed at the upper portion of the housing, i.e. the other side relative to the connecting piece, and includes: a fastening part 161 arranged at the upper part of the left casing 110 and close to the convex ring, wherein a fastening groove 1611 is arranged on the fastening part 161; an embedding part 162 is arranged at the edge of the concave ring of the right shell 120, and a convex buckling block 1621 is arranged on the embedding part 162.

The buckling grooves 1611 correspond to the protruding buckling blocks 1621 in position and are clamped in an interference fit manner. When the left housing 110 and the right housing 120 are closed, the convex ring of the left housing 110 is close to the concave ring of the right housing 120, and the convex fastening block 1621 is pressed into the fastening groove 1611, so as to fasten the left housing 110 and the right housing 120. In addition, in order to reduce the number of components, a rotation shaft groove may be provided on the outer sides of the locking portion 161 and the insertion portion 162, and the hook 200 may be coupled to the housing 100 through a rotation shaft.

After the lock of left side casing 110 and right side casing 120, through a plurality of protruding position piece 181 and protruding position strip 182 that set up, be used for guaranteeing radial clearance and the axial clearance between left side casing 110 and the right side casing 120, make the casing 100 that the lock formed have certain clearance, from the angle of manufacturing, protruding position piece 181 and protruding position strip 182 all can be when casting the mould to left side casing 110 right side casing 120 integrated into one piece, the size in clearance is controlled through the height that sets up protruding position piece 181 and protruding position strip 182 in advance, reduce spare part quantity, the manufacturing accuracy is improved, the time of the slow release of the effective solution of control that can be indirect accurate. Since the size of the housing 100 itself should not be too large, and the size of the raised ring and the recessed ring is necessarily smaller, the height t of the raised block 181 and the raised strip 182 is controlled to be 0.1-0.5 mm, and preferably, t is 0.1 or 0.2 or 0.3 or 0.4 or 0.5 mm.

As shown in fig. 4, the case 100 formed by fastening the left side case 110 and the right side case 120 is a blister-shaped case having a large middle and small ends. When the left side shell 110 and the right side shell 120 are molded, the structure with the large middle and the small two ends is easy to demold, on the other hand, the structure with the large middle and the small two ends enables the overall shape of the shell 100 to be small in volume but large in volume, preferably, the left side shell 110 and the right side shell 120 are arranged to be basically symmetrical, the convex belly position of the water bubble-shaped shell is located between 1/3-2/3 of the height from bottom to top of the shell 100, namely H1-H2/H is 1/3-2/3, after the shell 100 contains toilet cleaning products and water enters, the center of gravity is located at the lower part of the shell 100, when the hook 200 is adopted to hang the shell 100 on the inner edge of a toilet bowl, the hanging is more stable, the swinging is not easy, and the water can enter the shell from the.

A left extending plate 111 is arranged on one side of the left shell 110 facing the water inlet 130, and a right extending plate 121 is arranged on one side of the right shell 120 facing the water inlet 130; after the left casing 110 and the right casing 120 are fastened, the left extending plate 111 and the right extending plate 121 together form the air deflector 190.

The left and

right extension plates

111 and 121 form an inverted q-shaped profile of the lateral cross-section of the left and

right housings

110 and 120, and the left and

right extension plates

111 and 121 are formed by extending the left and

right housings

110 and 120 and are integrally molded when the left and

right housings

110 and 120 are molded. Because the water of closestool lavatory basin flows from lavatory basin upper portion inner wall, for guaranteeing that water can get into water inlet 130 smoothly, set up left side extension board 111, right side extension board 121, and with left side extension board 111, right side extension board 121 sets up to the cambered surface, make guide plate 190 that left side casing 110 and right side casing 120 lock formed after be a complete mild cambered surface of controlling, make it can laminate the closestool basin inner wall, reduce the clearance between casing 100 and the closestool lavatory basin inner wall, guarantee as much as possible rivers along guide plate 190 get into in the water inlet 130.

As shown in fig. 4, because the flush volume of the toilets of different models is different, in order to control the total water volume entering the casing 100, the left casing 110 and the right casing 120 are both provided with small holes 150, the highest liquid level of the water entering the casing 100 is controlled, when the casing 100 is combined with the shape to ensure the use of the toilets of different models, the initial total water volume entering and remaining in the casing 100 is certain, the deviation is reduced, thereby ensuring that the concentration of the effective solution formed after the toilet cleaning product is dissolved is kept consistent, ensuring that the using effect after the effective solution is dripped into the toilet bowl is consistent, and also ensuring that the service life of the toilet cleaning product is kept consistent among the toilets of different models.

Preferably, the small holes 150 are arc-shaped holes which are concave downwards, and the positions of the small holes 150 are required to ensure that the initial volume of water entering the housing 100 is 10-50 ml. Preferably, the arc-shaped holes are obliquely arranged, and one side facing the flow guide plate 190 is a higher end, so that when the present invention is used for toilets of different models, after the upper edge of the flow guide plate 190 is attached to the inner wall of the toilet bowl of the toilet, the casing 100 is deflected along the upper edge of the flow guide plate 190 and toward the side far from the flow guide plate 190, and at this time, the lowest point position of the obliquely arranged arc-shaped holes is not greatly deviated, so that the initial total water amount entering and remaining in the casing 100 tends to be consistent.

The container provided by the embodiment is suitable for solid toilet cleaning articles, such as a solid block containing a toilet cleaning effective substance, or a water-permeable packaging bag filled with solid particles of the toilet cleaning effective substance, and is placed in the casing 100, and then the casing 100 is placed on the inner side of a toilet bowl in a fitting manner, and can be adhered to the inner side of the toilet bowl by using an adhesive, or the casing 100 is hung on the inner edge of the toilet bowl through the hook 200. When a user presses the toilet to flush, water in the toilet tank enters the water inlet 130 of the housing 100 from the inner edge of the toilet bowl. When water enters the shell, the solid toilet cleaning effective substances in the shell are dissolved to form effective solution, and the effective solution slowly drops into a toilet bowl from the position where a gap is left after the left shell 110 and the right shell 120 are buckled. In the process, as the effective solution is liquid and has certain tension, the tension and the liquid pressure have a mutual relation, when the liquid level is gradually reduced, the dropping speed of the solution is also gradually reduced, and the concentration of the solution is continuously increased, which is the advantage of delayed release. Because casing 100 is formed by left side casing 110 and right side casing 120 lock, the size in accessible control lock back clearance to the effective solution of control is from forming to the time that drips, has also prolonged the cycle of release promptly, makes solution most stop in the closestool, guarantees the effective material content of the toilet cleaner in the lavatory basin, has reduced the waste, has promoted practical function.

Through the size in clearance behind control left side casing and the right side casing lock to the effective solution of control is from forming to the time that drips, has also prolonged the cycle of release promptly, makes most stops in the closestool of solution, guarantees the effective material content of the toilet cleaning articles for use in the lavatory basin, has reduced the waste, has promoted practical function.

The embodiment provides a method for slowly releasing a toilet cleaning article, which acts in a toilet bowl 500 of a flush toilet, wherein the toilet cleaning article is arranged in a shell, and the method comprises the following steps: before water enters the shell 100, the toilet cleaning article 300 forms an initial solution with the density rho 1 in the shell 100, when water enters the shell 100 again, the initial solution is diluted by the water to form a replacement solution with the density rho 2, and the replacement solution slowly flows out of an opening of the shell 100 and enters the toilet bowl 500; when the water level in the toilet bowl 500 returns to the normal state, the replacement solution continues to be released after the water level in the toilet bowl 500 returns to the normal state until the release is finished, and the mixed liquid of the replacement solution and the water existing in the toilet bowl 500 is called primary solution; in the above method, the chamber is used to contain the initial solution in a volume of not less than 10 ml; and the content of the effective components of the toilet cleaning product in the primary solution is not less than 2 ppm. Preferably, the volume of the initial solution is between 10 and 50 ml.

Preferably, the solubility of the toilet article in water at 25 ℃ in the initial solution is not more than 10 g/L; or the solubility of the toilet article in the initial solution in water at 20 ℃ is not more than 5 g/L.

In the present invention, the toilet cleaning article is a chemical substance comprising a structural formula (1):

Specifically, the chemical substances of the toilet cleaning product are selected from the following substances: any one of 1, 3-dichloro-5, 5-dimethylhydantoin, 1, 3-dibromo-5, 5-dimethylhydantoin, 1-bromo-3-chloro-5, 5-dimethylhydantoin, 1-chloro-3-bromo-5, 5-dimethylhydantoin, 1, 3-dichloro-5-methyl-5-ethylhydantoin, 1, 3-dibromo-5-methyl-5-ethylhydantoin, 1-bromo-3-chloro-5-methyl-5-ethylhydantoin, 1-chloro-3-bromo-5-methyl-5-ethylhydantoin, 1, 3-dibromo-5-methyl-5-isobutylhydantoin, 1, 3-dibromo-5-methyl-5-propylhydantoin, or a mixture of two or more thereof.

In order to verify that the toilet cleaning products of different chemical substances are selected and used together with the toilet cleaning method and the device in the invention, and finally the content of the effective substances of the toilet cleaning products in the toilet basin is the condition, the inventor tests the use conditions of five different toilet cleaning products which can release effective bleaching components after being dissolved in water. In the actual test, the test data of about 30 days is intercepted, and the test data is shown in fig. 5. The method for testing the effective chlorine content in the water body of the toilet bowl comprises the following steps: the toilet cleaning product capable of releasing the effective bleaching ingredients after being dissolved in water is placed into a packaging bag and then hung on the upper edge 510 of a toilet bowl, the packaging bag can accumulate water required by packaging design at a hanging position, the toilet cleaning product is flushed for 6 times or 10 times every day at a certain interval, the water body in the toilet bowl after being flushed for every time is used for testing the effective chlorine content in the solution, and specifically provided data is the lowest data in all data tested on the same day. The method for testing the available chlorine comprises the following steps: the available chlorine test was carried out with reference to the determination (titration method) of available chlorine in detergents in chapter 19 of GB/T13173-2008 "test methods for surfactants detergents". Because the content of the available chlorine tested by the invention is lower, the concentration, the sample weighing amount and the like of the reagent are adjusted relative to the national standard test method in order to obtain a more accurate test result.

Specifically, the concentration of sodium thiosulfate in the standard titration solution is c (Na)₂S₂O₃) 0.01 mol/L; in the testing process, the sample amount is adjusted according to the content of available chlorine in the primary solution, 60-70 g of the primary solution in the toilet bowl after flushing each time is weighed by an analytical balance for testing use, and the mass m (accurate to 0.001g) is recorded; in the calculation of the result, the content of available chlorine is calculated by mass fraction X, and the numerical value is expressed by ppm, and the specific calculation process is as follows:

in the formula:

c-concentration of sodium thiosulfate standard titration solution in moles per liter (mol/L);

v-volume of sodium thiosulfate standard titration solution consumed by titration in milliliters (mL);

35.45-relative atomic mass of chlorine in grams per mole (g/mol);

m-the mass of the primary test solution weighed in grams (g).

The arithmetic mean of the two replicates is expressed to the one decimal place as the measurement result.

It should be noted that the effective chlorine content in the present application does not refer to pure effective chlorine content, and when the sample contains effective bromine, the effective bromine content is also included, and since it is difficult to distinguish the specific ratio of effective chlorine to effective bromine by using the determination method in the present experiment, for convenience of calculation, the experimental data provided in fig. 5 shows that the effective chlorine content in the water body of the toilet bowl is calculated by uniformly using the molar mass of chlorine element. From the experimental data of fig. 5, we can find that, on the basis that the content of available chlorine is not lower than 2ppm, by adopting the time-delay release method of the toilet cleaning product provided by the invention, the toilet cleaning product can be flushed for 6 times every day, and the effective substances of the toilet cleaning product can be continuously released in the toilet basin for at least 26 days.

In addition, as shown in fig. 6, the present embodiment also provides the solubility of the toilet articles in the initial solution, wherein the query result of the scinder Academic american chemical abstracts library is calculated by using advanced chemical Development Software (ACD/Labs) Software V11.02), and from the result of the solubility data, it can be seen that the solubility of the toilet articles adopted in the present technical solution satisfies that the solubility in water at 25 ℃ is not more than 10 g/L; or has a solubility in water of not more than 5g/L at 20 ℃.

The main principle of the method of the present invention is to use a replacement method, firstly, the toilet cleaning article 300 is placed in the housing 100, and the housing 100 is placed at a proper position of the toilet or the toilet bowl 500, so that the water in the water tank of the toilet can smoothly enter the housing 100 to be mixed with the toilet cleaning article 300, and then flows out from the opening of the housing 100. Since the housing 100 has only an opening for water to flow out, after the first flushing, the water entering the housing 100 will not flow out completely, and some water will remain in the housing 100, and the water will partially or wholly soak the toilet cleaning article 300, so that the toilet cleaning article 300 forms the initial solution in the housing 100, and the water level of the initial solution will not exceed the height of the opening of the housing 100. When the user flushes water next time, the water in the toilet tank enters the housing 100 again, the water level of the water begins to exceed the height of the opening of the housing 100 while the water in the water tank is mixed with the initial solution, that is, at this time, the replacement solution begins to flow out of the opening of the housing 100 and enters the toilet bowl 500, and the concentration of the replacement solution gradually decreases with the continuous filling of the water in the toilet tank, but the effective substance of the toilet article 300 in the replacement solution is continuously released, slowly, as the toilet article 300 continues to dissolve in the replacement solution, the effective substance of the toilet article 300 in the replacement solution reaches dynamic equilibrium, that is, the content of the effective substance of the toilet article 300 in the replacement solution flowing out of the housing 100 is equal to the content of the effective substance of the toilet article 300 dissolved again in the replacement solution in the housing 100 in the same time period, at this time, can guarantee that follow-up clean lavatory articles for use 300 active material content that gets into in the lavatory basin 500 is stable, prevent that the active ingredient in the clean lavatory articles for use 300 from being washed away fast by rivers to guarantee the active material content of clean lavatory articles for use 300 in the lavatory basin 500, make solution most stop in the closestool, reduced the waste, promoted practical function.

Secondly, the toilet cleaning product 300 is wholly soaked in the water in the shell 100, so that the toilet cleaning product 300 can be sealed under the water level, the volatilization of volatile components in the toilet cleaning product 300 is avoided, and the dissipation of peculiar smell can be prevented.

Further, the solute content of the toilet cleaning product 300 contained in the initial solution in the shell is defined as m0, and the solute content of the toilet cleaning product 300 contained in the primary solution in the toilet bowl is defined as m1, so that m1/m0 is 0.5-1.

For water closets with different sizes, the water storage volumes of the toilet bowls 500 are different, but the initial solute content m0 formed by the toilet cleaning articles 300 of the same type is certain, and the initial solute content m0 acts on the toilet bowls 500 and is substantially the solute in the replacement solution, so that the action effect of replacing the solution in the toilet bowls 500 is ensured by adopting the solute content ratio, namely m1/m0 is 0.5-1; preferably, m1/m0 is 0.5 or 0.6 or 0.7 or 0.8 or 0.9 or 1. As the toilet pan 500 is communicated with the U-shaped pipe, a small amount of solute inevitably enters the U-shaped pipe, and therefore, the ratio of m1/m0 is required to be more than 0.5. The steps in actual detection are as follows: selecting two identical toilets (a toilet A and a toilet B), cleaning a toilet water tank and a toilet bowl 500, filling the toilet water tank with water, and recovering the water level in the toilet bowl 500 to be normal; two identical housings 100(a and b) are respectively mounted at the same positions of two toilets, and the housing 100 at the position can receive water flowing into a toilet bowl 500 from a toilet water tank; putting the same quality of the same solid toilet cleaning article 300 containing the cleaning component M into the housings 100a and b, respectively, adding water to the housings 100a and b and standing for a period of time to form initial solutions; the starting solution in the housing 100a was completely received by the container, and the mass of M in the received starting solution was measured and recorded as M0. When the casing 100B mounted on the toilet bowl B finishes releasing the replacement solution by pressing the flush button of the toilet bowl B, the mass of M in the primary solution in the toilet bowl 500 is measured and recorded as M1, so as to obtain the ratio of M1/M0. The solute content in the initial solution and the primary solution with corresponding volumes can be obtained by obtaining the initial solution and the primary solution with certain volumes and adopting physical and chemical methods such as drying and the like, and the actual ratio of m1 to m0 can be obtained by calculating the solute content of the initial solution and the primary solution with the whole volumes, so that the mixing ratio of the toilet cleaning product 300 and water and the release amount of the initial solution can be adjusted.

Further, in the method, the housing 100 is provided with an opening 4, and the opening has a certain height, and when the level of the replacement solution exceeds the height of the opening 4, the replacement solution flows out of the opening 4 into the toilet bowl 500 until the level of the water returns to the height of the opening.

Further, in order to avoid waste caused by excessive residual water in the casing 100 causing the dissolution transition of the toilet cleaning product 300 and also avoid the problem that the residual water in the casing 100 is too small and is inconvenient for the subsequent replacement solution to reach dynamic balance, the opening 4 of the casing 100 is arranged at positions 1/3-1/2 in the height direction of the casing 100, namely, H/H is 1/3-1/2 as shown in fig. 1 or fig. 2, or the volume of the residual water in the casing 100 is 1/3-1/2 of the total volume of the casing 100.

Further, the toilet cleaning article 300 is placed in the casing 100, and water is introduced into the casing 100 to dilute the initial solution according to the structural characteristics of the toilet bowl.

As shown in fig. 7, when the water discharged from the toilet bowl 500 is a vertical water discharge, the water is guided to move downward in an inclined direction, and is introduced from the upper portion of the casing 100, so that the initial solution is diluted, and the formed replacement solution flows out of the casing 100.

When the water outlet of the toilet bowl 500 is vertical, i.e. the water entering the toilet bowl 500 from the toilet tank flows downwards along the inner wall of the toilet bowl 500, since the water flows downward along the inner wall, the water inlet of the housing 100 is disposed at the upper portion, and toward the inner wall of the toilet bowl 500, the water flow is drained from the inner wall downwards into the casing 100 leaning against the inner wall, mixing with the toilet cleaning product 300 at the bottom of the casing 100 to dissolve or dilute the toilet cleaning product 300, wherein as the amount of water entering the casing 100 increases, the water in the casing 100 is full, and the toilet cleaning product 300 is either suspended in the casing 100 or continuously located at the bottom of the casing 100, finally forming an initial solution, when the user presses the flush next time, water enters the housing 100 again to dilute the initial solution to form a replacement solution, and the level of the substitution solution is higher than the opening 400 of the housing 100, at which time the substitution solution flows out from the opening 400 of the housing 100 from the rear. In the process, the long and thin drainage tube is arranged at the bottom of the shell 100 or the long and thin water outlet channel is arranged at the bottom of the shell, so that the liquid is slowly released under the action of liquid tension, and the effect of slow release is realized.

As shown in fig. 9, the liquid concentration or solute level in the housing first decreases and then increases.

Before water enters the shell again, a certain amount of liquid exists in the shell, the interval between two flushing times is lengthened, the solute of the initial solution is at the highest value of the next flushing stage, after water enters the shell again, the initial solution is diluted, the liquid density is changed from rho 1 to rho 2, in the stage, along with the large amount of flushing water entering the shell, the liquid concentration can firstly drop, along with the continuous discharge of the replacement solution and the stop of the entering amount, the liquid concentration in the shell begins to gradually rise, slowly, along with the continuous dissolution of the toilet cleaning product in the replacement solution, the effective substances of the toilet cleaning product in the replacement solution can reach dynamic balance.

Example 2

This embodiment differs from embodiment 1 only in that: the effective bleaching component released by the toilet cleaning product after being dissolved in water comprises a chemical substance with a structural formula (2):

The chemical substances of the effective bleaching components released by the toilet cleaning product after being dissolved in water are selected from the following: any one or two or a mixture of more than two of 1, 3-dichloro-5, 5-dimethylhydantoin, 1, 3-dibromo-5, 5-dimethylhydantoin, 1-bromo-3-bromo-5, 5-dimethylhydantoin, 1, 3-dichloro-5-methyl-5-ethylhydantoin, 1, 3-dibromo-5-methyl-5-ethylhydantoin, 1-bromo-3-chloro-5-methyl-5-ethylhydantoin, 1-chloro-3-bromo-5-methyl-5-ethylhydantoin.

As shown in fig. 8, when the water discharged from the toilet bowl 500 is a horizontal water discharge, the water is guided to move obliquely upward, and is introduced from the upper portion of the casing 100, the initial solution is diluted, and the formed replacement solution flows out of the casing 100.

When the water outlet of the toilet pan 500 is horizontal water outlet, namely the water of the water tank of the flush toilet enters the toilet pan 500 from 1 to 2 water outlets horizontally arranged at the edge of the toilet pan 500, the water can be transversely flushed out when flushing, and a vortex is formed along the wall of the toilet pan 500 under the action of gravity, so that the flushing force of the water flow to the wall of the toilet pan 500 is increased. Therefore, by adopting the oblique upward drainage manner, the transversely flushed water flow enters the casing 100 along with the increase of the amount of water entering the casing 100, the water in the casing 100 is full, the toilet cleaning product 300 is suspended in the casing 100 or continuously located at the bottom in the casing 100, and finally forms an initial solution, when the user presses the flush next time, the water enters the casing 100 again, a replacement solution is formed after diluting the initial solution, and the water level of the replacement solution is higher than the opening 400 of the casing 100, and at this time, the replacement solution flows out from the opening 400 of the casing 100. In the process, the long and thin drainage tube is arranged at the bottom of the shell 100 or the long and thin water outlet channel is arranged at the bottom of the shell, so that the liquid is slowly released under the action of liquid tension, and the effect of slow release is realized.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.

Claims

1. A method for slowly releasing a toilet cleaning product acts in a cavity of a closestool, and is characterized by comprising the following steps:

before water enters the cavity, the toilet cleaning article forms an initial solution with the density rho 1 in the cavity, when water enters the cavity again, the initial solution is diluted by the water to form a replacement solution with the density rho 2, and the replacement solution slowly flows out of the opening of the cavity and enters the toilet bowl;

when the water level in the toilet bowl returns to the normal state, the replacement solution is continuously released after the water level in the toilet bowl returns to the normal state until the release is finished, and the mixed liquid of the replacement solution and the water existing in the toilet bowl is called primary solution;

in the above method, the chamber is used to contain the initial solution in a volume of not less than 10 ml; and the content of the effective components of the toilet cleaning product in the primary solution is not less than 2 ppm.

2. The method of claim 1, wherein the solubility of the toilet cleaning composition in water at 25 ℃ in the initial solution is no greater than 10 g/L; or the solubility of the toilet article in the initial solution in water at 20 ℃ is not more than 5 g/L.

3. A method of providing a slow release of a toilet cleaning product according to claim 1, wherein, in the method,

defining the solute content of the toilet cleaning product contained in the initial solution in the cavity as m0,

defining the solute content of the toilet cleaning article contained in the primary solution in the toilet basin as m1,

then m1/m0 is 0.5-1.

4. A method of providing a slow release of a toilet cleaning product according to claim 1, wherein, in the method,

defining the time t1 for flushing the toilet bowl from the beginning of replacement solution entering the toilet bowl to the water level in the toilet bowl to recover the normal state;

defining the time from the beginning to the end of the release of the replacement solution in the cavity as the outflow time t3 of the replacement solution;

defining a release time t4 from the water level in the toilet bowl returning to the normal state to the end of the release of the replacement solution in the cavity as the partial delay of the replacement solution;

then: t 4-t 3-t1, and/or t4 is not less than 3 minutes, and/or t4 is not less than t 1; t3 is less than or equal to 40 minutes, and/or t3 is more than or equal to 2t 1.

5. The method for releasing a toilet cleaning product slowly according to claim 4, wherein t3 is 4-25 minutes.

6. The method of claim 1, wherein the concentration of the liquid or solute in the chamber is decreased and then increased.

7. The method for releasing a toilet cleaning product slowly according to any one of claims 1 to 6, wherein the effective bleaching component released by the toilet cleaning product or the toilet cleaning product after dissolving in water comprises a chemical substance with a structural formula (1):

wherein: r₁And R₂Each independently selected from C₁-C₆Any one of alkyl substituent and hydrogen, and R₁And R₂At least one of them is C₁-C₆An alkyl group; x and Y are independently selected from any one of bromine, chlorine and hydrogen, and at least one of X and Y is a halogen element.

8. A method according to claim 7, wherein the toilet cleaning composition itself or the effective bleaching component released by the toilet cleaning composition after dissolution in water is selected from the group consisting of: any one of 1, 3-dichloro-5, 5-dimethylhydantoin, 1, 3-dibromo-5, 5-dimethylhydantoin, 1-bromo-3-chloro-5, 5-dimethylhydantoin, 1-chloro-3-bromo-5, 5-dimethylhydantoin, 1, 3-dichloro-5-methyl-5-ethylhydantoin, 1, 3-dibromo-5-methyl-5-ethylhydantoin, 1-bromo-3-chloro-5-methyl-5-ethylhydantoin, 1-chloro-3-bromo-5-methyl-5-ethylhydantoin, 1, 3-dibromo-5-methyl-5-isobutylhydantoin, 1, 3-dibromo-5-methyl-5-propylhydantoin, or a mixture of two or more thereof.

9. The method for releasing a toilet cleaning product slowly according to any one of claims 1 to 6, wherein the effective bleaching component released by the toilet cleaning product or the toilet cleaning product after dissolving in water comprises a chemical substance with a structural formula (2):

wherein: r₁And R₂Each independently selected from C₁-C₂And X and Y are independently selected from any one of bromine, chlorine and hydrogen, and at least one of X and Y is a halogen element.

10. A method of providing a slow release of a toilet cleaning composition according to claim 9 wherein the chemical substance of the toilet cleaning composition itself or of the active bleaching ingredient released by the toilet cleaning composition on dissolution in water is selected from the group consisting of: any one or two or a mixture of more than two of 1, 3-dichloro-5, 5-dimethylhydantoin, 1, 3-dibromo-5, 5-dimethylhydantoin, 1-bromo-3-bromo-5, 5-dimethylhydantoin, 1, 3-dichloro-5-methyl-5-ethylhydantoin, 1, 3-dibromo-5-methyl-5-ethylhydantoin, 1-bromo-3-chloro-5-methyl-5-ethylhydantoin, 1-chloro-3-bromo-5-methyl-5-ethylhydantoin.